Access SQ is a low-backlash planetary gearbox designed for moderate to medium-duty applications with variations of torque. It is popular in cartesian pick&place robots.
|Radial load rating||+++|
|Axial load rating||+|
|Suitable to servomotor applications||YES|
|Number of sizes in this line||3 (40 to 90)|
|Angular backlash||<5 arc-min (1 stage) or <8 arc-min (2 stages)|
|Optional backlash||<3 arc-min (1 stage) or <5 arc-min ( 2 stages)|
|Available ratios||3 to 100|
|Motor shaft connection||Balanced coupling|
The planet carrier is a cage, which provides stiffness and acceleration capacity. It is monobloc with the output shaft.
High radial loads can be accepted thanks to the 2 radial ball bearings supporting the shaft.
The planetary ring is monobloc (belongs to the housing), to reinforce stiffness.
This construction improves acceleration capacity and acceptance of torque variations.
We recommend this line for applications using application factor Ka<1.45 (refer to the information section for more details about application factors).
In 2 stage configurations (ratios 12 to 100), the input stage is cantilevered (does not use a cage), in order to lower the intertia, the weight and the length of the gearbox. The output stage always includes a cage, in order to provide stiffness and longer life in heavy-duty conditions.
The motor shaft connection is a balanced coupling, so the efforts on your motor bearings are minimal.
Installation is fast and easy thanks to a 1-screw lock to your motor shaft.
The gearbox will be delivered with the adapting flange corresponding to your motor.
MEDIUM ACCELERATION CAPACITY
The planet carrier is a cage, designed to increase torsional stiffness. It is strongly supported by 2 radial ball-bearings, to ensure perfect alignment of the gears, even at maximum torque. This design is adapted to moderate to medium-duty torque variation or acceleration where a particularly low noise level is not required.
High-precision planet gears in carburized and quenched steel allow high torque density and strong accelerations, year after year, without loss of precision.
They are supported by large full-complement needles (needle bearings without a cage), in order to maximize torque capacity and lifetime.
The Access line features low-backlash (under 5 arc-min backlash for 1-stage gearboxes, and under 8 arc-min backlash for 2 stages gearboxes)
MONOBLOC, FORGED RING GEAR
The ring gear belongs to the housing, what increases stiffness and allows sharp variations of torque and acceleration.
SAFETY FOR YOUR MOTOR SHAFT
Access features a standard, balanced coupling, to limit vibration on your motor shaft and prolounge your motor's bearings life.
|Emergency stop torque Tx (3)||1,5*Tmax|
|Angular backlash (arc-min)||1 stage||≤10||≤7||≤5||≤5|
|Nominal input speed (4) (rpm)||4,000||3,700||3,500||2,700|
|Maximum input speed (5) (rpm)||10,000||8,000||7,000||6,000|
|Maximum radial load (6) (N)||800||1,700||2,800||5,000|
|Maximum axial load (N)||700||1,550||1,900||4,000|
|Efficiency at full load (%) (7)||1 stage||＞97|
|Torsional stiffness (Nm/arc-min)||1,4||4,2||13||33|
|Min/max operating temperature (°C)(9)||-10 / +45|
|Max housing temperature (90°)||90|
|Protection class||IP 54|
|Lubricant||Lifetime lubrication (grease)|
|Color||Capri blue (RAL 5019)|
|Input flange||Anodized Aluminum|
Note : all torque ratings fluctuate with the radial and axial loads that are applied on the shaft. Consult us to know the torque applicable in your application. Click here for more information.
Please find below the most frequent motor-gearbox combinations. If the one you're looking for is not in the list, do not hesitate to ask for a drawing. Click here to request the datasheets and 3D drawings.
A list of standard motor flanges is also available here.
|Gearbox model||Number of stages||
|ACCESS-SQ-ST-060||1 stage - ratios 3 to 10||B&R||8LSA25|
|ACCESS-SQ-ST-060||1 stage - ratios 3 to 10||MITSUBISHI||HG-KR23B|
|ACCESS-SQ-ST-060||1 stage - ratios 3 to 10||SCHNEIDER||BCH2LF0733CA5C|
|ACCESS-SQ-ST-060||2 stages - ratios 12 to 100||MITSUBISHI||HG-KR23B|
|ACCESS-SQ-ST-090||1 stage - ratios 3 to 10||ALLEN BRADLEY||MPL-B4540|
|ACCESS-SQ-ST-090||1 stage - ratios 3 to 10||SCHNEIDER||BCH2LF0733CA5C|
|ACCESS-SQ-ST-090||1 stage - ratios 3 to 10||SIEMENS||1FK7044|
|ACCESS-SQ-ST-090||2 stages - ratios 12 to 100||SIEMENS||1FK6044|
|ACCESS-SQ-ST-120||1 stage - ratios 3 to 10||OMRON||R88M-4H020|
|ACCESS-SQ-ST-120||1 stage - ratios 3 to 10||SIEMENS||1FK7060|
|ACCESS-SQ-ST-120||1 stage - ratios 3 to 10||SIEMENS||1FK7086|
|ACCESS-SQ-ST-120||2 stages - ratios 12 to 100||DELTA||ECMA E11310|
|ACCESS-SQ-ST-120||2 stages - ratios 12 to 100||SIEMENS||1FL6066|
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Access was developped to offer the lowest price on the market of low-backlash planetary gearboxes. Yet it features carburized and ground planets, a 5 to 8 arc-minutes backlash and a monobloc housing for unrivaled stiffness amongst competition products!